And if we want to reverse it, we have to do a variety of things that are based on science. We can't do like the Republicans are doing.

“....virtually all of my Republican colleagues continue to ignore the scientific evidence and refuse to support legislation which will address this planetary crisis.” [climate-change-all-nighter]

Theodore Roosevelt would be spinning in his grave, except he was used to fighting corrupt members of his own party. Even so the GOP has spat on their own history both with their repudiation of respect for the environment, science and their repudiation of the concepts of Abraham Lincoln for becoming a vessel of the heirs of Jefferson Davis. But this is nothing new. TR faced the same quandary 100 years ago.

"Political parties exist to secure responsible government and to execute the will of the people. From these great tasks both of the old parties have turned aside. Instead of instruments to promote the general welfare they have become the tools of corrupt interests, which use them impartially to serve their selfish purposes. Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people. To destroy this invisible government, to dissolve the unholy alliance between corrupt business and corrupt politics, is the first task of the statesmanship of the day." TR Quote

TR's battle is our battle, and reversing climate change is also conserving our environment and mitigating the effects of what is happening do to our poor stewardship of the environment. Reversing climate change doesn't have to be excessively expensive or a great torture. Because the other side of reversing climate change is to move into a sustainable economy that can:

“mov[e] us away from fossil fuels and into energy efficiency and sustainable energy. Doing that will not only help reverse climate change, but can, over a period of years, create millions of good-paying jobs.” [Statement]

It means investing in green energy; solar energy, wind and geothermal energy. It means mitigating the effects of climate change by installing water drainage, storage, conservation and recycling systems into our water use and supply systems. There is money to be made by kickbacks from the fossil fuel extraction.